Blade Shape = Flat Blade 타입 = Snap-off Blade Blade Width = 9 mm Number of Pieces = 10 CK 9 mm Snap-Off Knife Blades. Spare 9 mm Snap-Off Trimming Knife Blades from CK. Each pack contains 10 blades and is supplied in protective packaging. Blades feature 12 breakable segments.